Noninflammable celluloid



IUD- bUlVll'UQl l IUHO, Litfillllllfi COATING R PLASTIC.

JOHN J. AUBYNGER, 0F BROOKLYN, NEW YORK.

NONINFLAMMABLE CELLULOID.

No Drawing. Application filed June 19, 1922. Serial No. 569,441.

To all whom it may concern: Various ingredients are used to increase 55 Be it known that I, JOHN J. AURYNGER, the pliability and prevent shrinkage, cracka citizen of the United States, residing at ing or peeling among which may be men- Brooklyn, in the county of Kings and State tioned castor oil, naphthaline and oil of l of New York, have invented a new and usecassia. ful Noninflammable Celluloid, of which the The cement may be used as a binder for 60 following is the specification. cementing cheaper materials, including the The object of the invention is the producoxides of metals and powdered stone. Betion of a non-inflammable waterproof comore t e co u 01d becomes hard, the plastic 1 position, cement or lacquer which may be mass is pressed into any desired form.

used for electrical insulation, a vehicle for I claim: the sensitive photographic salts, airplane 1. A composition consisting of a soluble dope and the various items for which cellucellulose corn ound dissolved inasolven an loid is used. an e na amount of a soluble silldale sub- 1 The process relates to the formation of stantially as described. MM

Lnj ta t i gn agate. The cellulose is converted 2. A pliable composition adapted to form 70 into a silicate by the re lion of the hvdroxa noninflammable vehicle for holding senside om'ichn which more common y tive photographic salts comprising two known as the acids of silicon. The coloring parts of soluble cellulose compound and a 2 is due to the presence of impurities and solvent, muwa fiiiufivoffsoluble silip ate metallic oxide such as the oxide of iron contalning such amounts of silicic a did and 75 WlllCll gives 1t a red color. M an alkaline silicate that the resulting com- This composition consists of a mixture of position will be neutral in reaction and apcollodion cotton or cellulose nitrate and an proximately one part of cam hor. equal amount of the hvdroxides or chlo- 3. A pliable composition a apted to form ride of silicon or the 51 mates 0 so lum an a waterproof, noninfiammable electrical in- 80 otassiuml The addition of amounts of the sulation comprising two parts of a s l ub le ,f" aBove compounds containing equal molecucellulose c 1 )ound and a solvent, an equal "1: lar proportions of an acid to an alkaline soamount of a soluble silicate approximately lution will produce a composition neutral one part of cW PIOIilIlCflStOI oil.

in reaction. To this fireproofing compound 4. A plastic composition adapted to form 85 may be added other nigvemeiaswimren ara a noninflammable binder comprising two used in the manufacture of celluloid, ceparts of a soluble cellulose compound and ment, airplan dope and lacquer. It is often a solvent, an equal amoii n't of a sdliible sil i 85 found convenient to dissolve the cellulose nicafe approximately one part of ca'lii flor,

trate in alcohol and ether before addmg the sfitor oil and irgn oxide. soluble silicate. A plastic mass is obtained 3. K pliable neutral composition adapted by dlssolving the cellulose nitrate in alcohol to form a noninflammable vehicle for holdand ether or other solvent to which is added ing sensitive photographic salts comprising 40 the soluble silicate. In preparing nonintwo parts of a soluble cellulose coinpound Q g r ngal lgmlofitwo parts of cellulose mand a sal ent, an equal aniount of soluble 95 rat are mixed with an equal amount of a silicate containing such amounts of s ilicic X.

so u le silicate and approximately one part acid and alkaline gil i ga te that the resulting o cam 101'. he plastic mixture is next compositidn' will be neutral in reaction and hea'fied' Tnemperature of about 215 de rees approximately one part of cam )hor.

F. which'removes the volatile m 6. A composition as set forth 1n claim 5 .100 't'li'' plastic mass is then rolled into sheets and an additional amount of solvent.

or molded into various forms. 7. A composition adapted fcii' a la cquer as The methods for making celluloid ceset forth in claim 3 containing an additional ments, airplane dopes and lacquers are simiamount of solvent lar. The ingredients are the same and more 8. A neutral composition as set forth in solvent containing a substantial amount of claim 3 adapted for a lacquer containing adcellulose nitrate added to make a thin liquid ditional amount of so nt. which will spread easily on any surface. J O J. AURYNGER. 

